Faults & Folds Flashcards

Front

What does the principle of original horizontality state?

Back

Sedimentary rocks are deposited in flat layers.

Front

What can studying rock strata help us uncover?

Back

Information on Earth's history and fossils

Front

The law of original horizontality implies that tilting or bending of rock strata must have occurred... 

Back

after the layers were deposited.

Front

The tectonic plates are broken pieces of the Earth's _____________, floating on the _____________.

Back

crust; upper mantle

Front

What happens to rocks under pressure when they are heated to a high temperature?

Back

They tend to bend

Front

When enough stress builds up, rock can move- releasing the pressure. This release of energy is called:

Back

an earthquake.

Front

Where are folds more likely to occur in the Earth's crust?

Back

Deep underground

Front

What kind of stress is indicated by these arrows?

Back

Shear

Front

Which statements are true?

Folds tend to occur deep in the ground where the temperature is higher.

Faults tend to occur close to the surface where rocks are cooler and brittle.

Earthquakes tend to occur close to the surface where rocks are warmer.

When mountains form, rocks inside can fold due to extreme heat & pressure.

Back

Folds tend to occur deep in the ground where the temperature is higher.

Faults tend to occur close to the surface where rocks are cooler and brittle.

When mountains form, rocks inside can fold due to extreme heat & pressure.

Front

Describe a strike-slip fault..

Back

Rocks slide past each other laterally.